Lingenfelter L250110309 Lingenfelter C6 ZR1 Corvette Supercharger Front Cover 2009-13 v2.2 - Manual (Page 19)

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61. Remove the front cover from the
supercharger assembly.
18.
62. Remove the spring loaded isolator
coupling from the supercharger assembly (or it
may be on the front cover assembly).
63. Inspect the cover mounting surface on
the supercharger assembly. Clean off any
remaining adhesive with a razor blade.
If you have powdered rust in the supercharger
shaft housing bore, this is from the spring on
the isolator contacting the shaft on the front
housing and is fairly common. Wipe off the dust.
64. Install the supplied plastic isolator coupling
on the pins on the shaft in the supercharger
assembly. The holes are evenly spaced so it
doesn’t matter what set of holes you use. The
new isolator coupling will be a tight fit on the
pins.